This comic book features the first crossover of Iron Man and Sub-Mariner in their own series. Published by Marvel Comics in 1968, this single issue is from the Silver Age of comics. The cover art is done by Gene Colan, and the story is written by Roy Thomas and Archie Goodwin.

The comic is graded 6.5 Fine+ by Certified Guaranty Company (CGC). It is a collectible item for fans of superheroes and Marvel's cinematic universe. This is a must-have for any comic book collector or enthusiast.